- Algebraic Expressions and Equations
- Plane Geometry
- Coordinate Geometry
- Plane Geometry
- Probability, Counting and Combinatorics
Video by Art of Problem Solving's Richard Rusczyk.
- Percents and Fractions
- Plane Geometry
- Probability, Counting and Combinatorics
It’s Autumn, and that means leaves are falling! Amber’s house occupies 2650 ft2 in the middle of a 50-foot by 80-foot parcel of land, and the leaves that fall cover the ground all around her house. If...
- Plane Geometry
- Problem Solving (Misc.)
- Sequences, Series and Patterns
Now that 2024 is finally here, let’s see what we can do with this new number! If the perimeter of a particular square is 2024 inches, what is the area of the square, in square inches? Express your...
- Algebraic Expressions and Equations
- Plane Geometry
Hydraulic engineering is a subfield of civil engineering that centers around the transport and management of water resources. Hydraulic engineers design things like channels, canals, dams and levees...